Auxiliary unmanned aerial vehicle for live installation of spacer on overhead cable

Abstract

The invention relates to the technical field of unmanned aerial vehicles, and discloses an auxiliary unmanned aerial vehicle for live-line installation of a spacer on an overhead cable. A polygonal cylinder frame; the chain belt frame is of a multi-section end-to-end hinged structure and wraps the outer side of the lower part of the polygonal barrel frame in a U shape; the plurality of hanging pieces are connected to the hinged part of the chain belt frame and are used for hanging and releasing the spacer bodies; the main lifting ropes are connected to the upper sides of the two ends of the chain belt frame respectively; the winding and unwinding assembly is mounted on the lower side of the unmanned aerial vehicle body, connected with the upper end of the main lifting rope and used for winding and unwinding the main lifting rope; according to the winding and unwinding assembly, the chain belt frame is made to act through the main lifting rope, spacer bodies at different positions on the chain belt frame can be located at the lower end, mounting and mounting of the spacer bodies are facilitated, the spacer bodies do not need to be turned over, and the winding and unwinding assembly is suitable for mounting of rod-shaped spacer bodies; the polygonal cylinder frame is matched with the chain belt frame, so that the chain belt frame is stable in form, and the spacer body to be mounted is positioned at the lowest end; and a mainstream flexible mounting mode of the lifting rope is adopted, so that the safety and the insulation effect are good.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a UAV equipped with a spacer rod for live installation of overhead cables. Background Art

[0002] As the weight per unit length of my country's power lines, the weight of hardware, and the diameter of conductors increase, the probability of line galloping increases. Common anti-galloping devices include turbulent anti-galloping devices, detuned pendulums, anti-vibration hammers, and spacers. Among these, spacer anti-galloping devices include interphase spacers, spacers on single-phase split conductors, and phase-to-ground spacers. These all suppress conductor galloping. Based on relevant engineering practices, interphase spacers have a significant effect on preventing and suppressing galloping and are currently the most widely used anti-galloping device. Spacers are deployed in compact lines to insulate the phases and provide support connections. As a common device for preventing galloping, interphase spacers are suitable not only for single conductors but also for split conductors. They possess excellent insulation and mechanical strength, effectively supporting and restraining different phase conductors to prevent galloping. Therefore, power companies routinely install interphase spacers to reduce the occurrence of these faults. This method has been proven simple, effective, and reliable over the past few decades.

[0003] 10kV lines face challenges such as thin conductors that prevent them from being put online, unfavorable terrain that makes it impossible to erect scaffolding below, and inaccessible to live-line lift vehicles. The high cost and time required to install wires during power outages are also significant, and the cost of adding poles and rerouting is even higher. Therefore, a more scientific, applicable, and safe installation method is needed to significantly reduce the frequency of short-circuit tripping and ensure power supply reliability.

[0004] Preventing galloping of power transmission and distribution lines is a long-term problem to be solved, especially in power transmission and distribution line channels that cross major rivers. The control of inter-phase conductor galloping is even more urgent. Conventional construction methods cannot reach the designated installation location, especially the harsh environment below the installation point, which brings great difficulty to on-site operations.

[0005] In recent years, the use of drones for interphase spacer installation has rapidly grown, with patent publication number CN118953680B describing a mountable aerial work drone. This prior art can only mount multiple, specialized short spacers with a narrow application range, and cannot accommodate multiple, traditional rod-shaped interphase spacers. Summary of the Invention

[0006] The object of the present invention is to solve at least one of the problems in the above-mentioned prior art and to provide a spacer-assisted drone for live installation of overhead cables.

[0007] To achieve the above object, the present invention provides the following technical solutions: A spacer-assisted drone for live installation of overhead cables, comprising: The drone itself; The polygonal cylinder holder is located below the drone body and is set horizontally; The chain-belt frame is a multi-section structure hinged end to end, forming a U-shape that wraps around the lower outer side of the polygonal drum frame; A plurality of mounting parts are connected to the hinge of the chain belt frame and are used to mount and release the spacer rods; Several main lifting ropes are connected to the upper sides of both ends of the chain belt frame; The reeling assembly is installed on the lower side of the drone body, connected to the upper end of the main suspension rope, and reels the main suspension rope.

[0008] Furthermore, a secondary hanging rope is connected to the lower side of the drone body, the lower end of the secondary hanging rope is connected to a hanging seat, and a rotating shaft that rotates through the hanging seat is provided at the center of the polygonal drum frame.

[0009] Furthermore, the winding and unwinding assembly includes two sets of reels rotatably installed on the lower side of the drone body, and the two sets of reels respectively wind up and unwind the main lifting ropes at both ends of the chain belt frame; a motor is installed on the lower side of the drone body, and the motor drives the two sets of reels to rotate through two sets of belt transmission mechanisms.

[0010] Furthermore, the chain belt frame includes several hinge shafts, and a slat group is hinged between the ends of adjacent hinge shafts, and the slat group includes two parallel slats; the adjacent slat groups at the same end of the chain belt frame are axially staggered and axially correspond to the two adjacent slat groups of the same slat group; the mounting part is connected to the hinge shaft.

[0011] Furthermore, both ends of the polygonal drum rack have polygonal frames, and the slat group fits correspondingly with the borders of the polygonal frame; two parallel limiting plates extending into the slats of the slat group are provided on the outer side of each border of the polygonal frame.

[0012] Furthermore, the mounting member includes a U-shaped plate connected to the hinge shaft, and an electric telescopic rod is provided at the end of the U-shaped plate.

[0013] Furthermore, a hole plate corresponding to the electric telescopic rod is provided on the spacer rod body; fixed clamping blocks and movable clamping blocks for clamping the wire are provided at both ends of the spacer rod body, the movable clamping block is connected to a tension spring for moving the movable clamping block toward the fixed clamping block, the movable clamping block is connected to a locking rope, the end of the locking rope is connected to a positioning cylinder, and the telescopic end of the electric telescopic rod passes through the hole plate and cooperates with the positioning cylinder.

[0014] Furthermore, the end of the spacer rod is rotatably connected to a check plate, a V-shaped spring is connected between the check plate and the spacer rod, and when the movable clamping block and the fixed clamping block clamp the wire, the check plate abuts against the side of the movable clamping block facing away from the fixed clamping block.

[0015] Furthermore, the inner sides of the fixed clamping block and the movable clamping block have an arc-shaped surface that fits the side surface of the wire, and the arc-shaped surface is provided with a plurality of spiral strip-shaped protrusions that extend into the twisted wire gaps on the surface of the wire.

[0016] Furthermore, the inner sides of the fixed clamping block and the movable clamping block are each provided with a clamping body that slides in a circumferential direction, and the spiral strip-shaped protrusion is located on the clamping body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The winding and unwinding assembly of the present invention changes the shape of the chain belt frame through the main lifting rope, thereby positioning the spacer rods mounted on the mounting members at different positions on the chain belt frame at the lower end, thereby enabling the mounting and installation of multiple spacer rods without having to flip the spacer rods, and is suitable for the installation of rod-shaped spacer rods. The polygonal drum frame cooperates with the chain belt frame to stabilize the shape of the chain belt frame, ensuring that the spacer rods to be installed are positioned at the lowest end. The present invention adopts the mainstream flexible installation method of lifting rope, which has good safety and insulation effect during the installation process. Unlike traditional lifting ropes, the main lifting rope of the present invention not only plays the role of lifting, but can also be wound and unwound to realize the change of the state of the chain belt frame. The present invention uses a synchronous reel to synchronize the main lifting ropes at both ends of the chain belt frame, one to retract and the other to release, so that the spacer bars at different positions of the chain belt frame are located at the bottom; the present invention uses a secondary lifting rope to improve the stability of the polygonal drum frame to prevent the polygonal drum frame from falling off; The chain belt frame of the present invention adopts a slat group and a hinge shaft, which can be matched with the side surface of the polygonal drum frame in sequence; the slat group cooperates with the outer limit plate of the polygonal frame to provide guidance and support during the rotation of the polygonal drum frame and the movement of the chain belt frame outside the polygonal drum frame, ensuring accurate positioning and providing a safe foundation for the spacer plates mounted at different positions on the chain belt frame to move to the lower end installation position in sequence; The mounting member of the present invention cooperates with the dynamic clamping block. After the dynamic clamping block is released, the mounting member can simultaneously release the spacer rod through a single stroke, thereby achieving rapid elastic clamping of the wire by the spacer rod and release of the spacer rod. The present invention adopts spiral strip protrusions on the inner side of the clamping block, which extend into the gaps between the surface of the stranded wires. This can completely prevent the spacer rod from moving along the wire due to the dancing of the wire after installation, and solve the problem of spacer rod misalignment caused by insufficient clamping force on the wire when installing the spacer rod on a drone in the prior art. The spiral strip protrusion of the present invention is located on a clamping body that slides in the circumferential direction. During the process of the clamping block clamping the conductor, even if the spiral strip protrusion does not correspond to the twisted wire gap, the clamping body can automatically adjust its position by relying on the sliding and elastic clamping force of the clamping body, thereby allowing the spiral strip protrusion to extend into the twisted wire gap, while ensuring that the spacer rod is stable and not misplaced after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a side view schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the state of dismantling the drone body of the present invention.

[0020] Figure 3 This is a schematic diagram of the lower side structure of the drone body from a first perspective of the present invention.

[0021] Figure 4 Schematic diagram of the lower side structure of the drone body of the present invention from a second perspective.

[0022] Figure 5 Schematic diagram of the drone body from the bottom side of the present invention.

[0023] Figure 6 It is a schematic diagram of the assembly state of the chain belt rack, polygonal drum rack and spacer rod body of the present invention.

[0024] Figure 7 It is a schematic diagram of the release state of the spacer plate of the present invention.

[0025] Figure 8 It is a schematic diagram of the chain belt frame structure of the present invention.

[0026] Figure 9 It is a schematic structural diagram of the polygonal drum rack of the present invention.

[0027] Figure 10 Schematic diagram of the spacer rod structure of the present invention.

[0028] Figure 11 It is a schematic diagram of the matching state of the orifice plate and the positioning cylinder of the present invention.

[0029] Figure 12 It is a schematic diagram of the cross-sectional structure of the end portion of the spacer rod body of the present invention.

[0030] Figure 13 This is a schematic diagram of the explosion of the end of the spacer rod of the present invention.

[0031] Figure: 1. Polygonal drum frame; 2. Chain frame; 3. Mounting member; 4. Spacer rod; 5. Main lifting rope; 6. Reeling assembly; 7. UAV body; 8. Secondary lifting rope; 9. Top plate; 10. Support plate; 11. Outrigger; 12. Reel; 13. Reel shaft; 14. Motor; 15. Belt drive mechanism; 16. Hinge shaft; 17. Slat assembly; 18. Hanging seat; 19. Rotating shaft; 20. Polygonal frame. 21. Limit plate; 22. U-shaped plate; 23. Electric telescopic rod; 24. Orifice plate; 25. Fixed clamping block; 26. Moving clamping block; 27. Guide rod; 28. End plate; 29. Tension spring; 30. Lock rope; 31. Positioning cylinder; 32. Extension frame; 33. Check plate; 34. V-shaped spring; 35. Clamping body; 36. Arc-shaped slider; 37. Arc-shaped slide groove; 38. Spiral strip protrusion; 39. End seat. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. That is, the embodiments described are only part of the present invention, not all of the embodiments.

[0033] Specific embodiments of the overhead cable live installation spacer rod assisted drone provided by the present invention: Please refer to the attached Figure 1-13 The overhead cable live installation spacer auxiliary drone includes a drone body 7, a polygonal drum frame 1, a chain belt frame 2, a plurality of mounting parts 3, a plurality of main lifting ropes 5 and a winding and unwinding component 6.

[0034] The polygonal drum frame 1 is located below the drone body 7 and is arranged horizontally. The chain belt frame 2 is a multi-section structure hinged end to end. The chain belt frame 2 is initially U-shaped and wraps around the lower outer part of the polygonal drum frame 1. A number of mounting parts 3 are connected to the hinges of the chain belt frame 2 to mount and release the spacer rods 4. A number of main lifting ropes 5 are respectively connected to the upper sides of the two ends of the chain belt frame 2. The winding and unwinding assembly 6 is installed on the lower side of the drone body 7, connected to the upper ends of the main lifting ropes 5, and winding and unwinding the main lifting ropes 5. like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the underside of the drone body 7 is connected to the top plate 9 via bolts. The top plate 9 has through-holes at its four corners, and the underside of the drone body 7 has threaded holes that are threadedly connected to the bolts. A column is connected to the lower middle portion of the top plate 9, and a support plate 10 is connected to the lower end of the column. Rectangular frame-shaped legs 11 are connected to both ends of the support plate 10. In the landing position, the legs 11 are in contact with the ground to support the drone body 7. The reeling assembly 6 for reeling in the main sling 5 is mounted on the support plate 10. Since the drone body 7 is connected to the chain belt frame 2 via the main sling 5, the chain belt frame 2 and the polygonal drum frame 1 do not affect the landing of the legs 11.

[0035] The reel assembly 6 includes two sets of reels 12 rotatably mounted on the underside of the drone body 7. In this embodiment, the reels 12 are rotatably mounted on the underside of the support plate 10. Each set of reels 12 has two reels 12, for a total of four reels 12. The reels 12 in the same set are connected by a reel shaft 13 and rotate synchronously in the same direction. The reel shafts 13 of the two sets of reels 12 are arranged in parallel and located on the underside of the support plate 10 at each end.

[0036] Both ends of the chain belt frame 2 are connected to two main lifting ropes 5, and several parallel cross bars are connected between the middle parts of the two main lifting ropes 5 at the same end of the chain belt frame 2. A support rod is connected between the lower ends of the two main lifting ropes 5 at the same end of the chain belt frame 2, and the support rod is hinged to the end of the chain belt frame 2.

[0037] The upper ends of the two main lifting ropes 5 at the same end of the chain belt frame 2 are respectively wound around the outsides of the two reels 12 in the same group. Therefore, the two groups of reels 12 respectively wind up the main lifting ropes 5 at both ends of the chain belt frame 2.

[0038] A motor 14 is installed on the lower side of the drone body 7. In this embodiment, the motor 14 is installed in the middle of the support plate 10, and the output shaft of the motor 14 extends to the lower side of the middle part of the support plate 10. The lower side of the middle part of the support plate 10 is provided with an axle seat that supports the rotation of the output shaft of the motor 14, and the lower sides of both ends of the support plate 10 are provided with axle seats that support the rotation of the disc shaft 13.

[0039] The output shaft of the motor 14 drives the two sets of reels 12 to rotate via two belt drive mechanisms 15. The belt drive mechanisms 15 comprise an annular transmission belt and pulleys located on the inner sides of each end of the transmission belt. The output shaft of the motor 14 simultaneously drives the two sets of reels 12 to rotate via the belt drive mechanisms 15. Although the two sets of reels 12 rotate synchronously, one set of reels 12 reels 12 reels in the main hoisting rope 5 while the other set of reels 12 releases the main hoisting rope 5, maintaining the total vertical span of the main hoisting rope 5 and the chain belt frame 2. In this embodiment, the transmission belt is a synchronous belt, and the pulleys are synchronous pulleys to ensure a stable transmission ratio and prevent slippage.

[0040] The structure of the chain belt frame 2 is similar to that of a traditional chain. In this embodiment, the chain structure is improved. Specifically, the length of the chain plate is increased, and the length of the chain shaft is increased. The length of the chain shaft is greater than half of the spacer rod 4. Figure 6 、 Figure 7 、 Figure 8 and Figure 9 In this embodiment, the chain frame 2 includes several hinges 16. Slat groups 17 are hingedly connected between the ends of adjacent hinges 16. Each slat group 17 includes two parallel slats. Adjacent slat groups 17 at the same end of the chain frame 2 are axially offset and axially correspond to two adjacent slat groups 17 of the same slat group 17. That is, every other slat group 17 corresponds to the same axial position. The support rod at the lower end of the main hoist rope 5 is hingedly connected to the hinge 16 at the end of the chain frame 2.

[0041] Hinge shaft 16 is equipped with several annular protrusions at both ends, which serve to constrain the position of the individual slats in slat assembly 17 and prevent axial misalignment. Both ends of the slats have through-holes for hinge shaft 16 to pass through, allowing rotation between the slats and hinge shaft 16. The length of slat assembly 17 matches the side width of polygonal drum rack 1, and the axial length of polygonal drum rack 1 matches the length of hinge shaft 16.

[0042] The polygonal drum rack 1 in this embodiment has a polygonal frame 20 at both ends. The polygonal frame 20 is an octagonal frame. There are two polygonal frames 20. The polygonal drum rack 1 also includes a rotating shaft 19 passing through the center of the polygonal frame 20. A number of spokes evenly distributed around the circumference are connected between the outer side of the end of the rotating shaft 19 and the inner side of the polygonal frame 20.

[0043] A secondary sling 8 is connected to the underside of the drone body 7. The lower end of the secondary sling 8 is connected to a cylindrical hanger 18. A rotating shaft 19 at the center of the polygonal drum frame 1 rotates through the hanger 18. A bearing supporting the rotating shaft 19 is provided on the inside of the hanger 18. The secondary sling 8 prevents the polygonal drum frame 1 from separating from the chain belt frame 2, thereby avoiding unnecessary safety risks. The length of the secondary sling 8 is designed to ensure that the weight of the polygonal drum frame 1 presses against the lower inner side of the chain belt frame 2, and the polygonal drum frame 1 acts as a counterweight and rotates with the movement of the chain belt frame 2. The secondary sling 8 cannot be too loose, that is, it cannot bend in its initial state, reducing the shaking of the secondary sling 8. At the same time, it can also form a rotation restriction on the hanger 18 when the polygonal drum frame 1 rotates.

[0044] The slat assembly 17 is aligned with the border of the polygonal frame 20; each border of the polygonal frame 20 is equipped with two parallel stop plates 21 extending between the slats of the slat assembly 17. In other words, each polygonal frame 20 has two circles of stop plates 21 on its outer side. In this embodiment, only one of the two stop plates 21 on the outer side of the same border of the polygonal frame 20 can extend between the slats of the slat assembly 17 at a time, because two adjacent hinge shafts 16 are connected to the same end of a slat assembly 17.

[0045] The two circles of multiple limit plates 21 on the outside of the polygonal frame 20 can cooperate with the slat group 17 on the chain belt frame 2 to achieve limitation, avoiding separation of the two, and then when the chain belt frame 2 moves when the main lifting rope 5 is wound and released, the polygonal drum frame 1 can be stably pressed on the inside of the chain belt frame 2.

[0046] The mounting member 3 is connected to the hinge shaft 16. The mounting member 3 includes a U-shaped plate 22 connected to the hinge shaft 16. The end of the U-shaped plate 22 is provided with an electric telescopic rod 23. Two electric telescopic rods 23 are installed on each U-shaped plate 22. The two electric telescopic rods 23 are respectively located at the two ends of the U-shaped plate 22 and are arranged opposite each other. That is, the telescopic ends of the two electric telescopic rods 23 face each other.

[0047] The polygonal drum rack 1 in this embodiment adopts an octagonal drum rack, and the chain belt rack 2 has eight slat groups 17 connected end to end at the same end. In the initial state, four groups of slat groups 17 are in contact with the outer side of the end of the octagonal drum rack, and the remaining four groups of slat groups 17 are in a vertical state at both ends.

[0048] In this embodiment, the number of hinge shafts 16 of the chain belt frame 2 is nine, and the outer sides of the five hinge shafts 16 in the middle are installed with mounting parts 3, and the outer sides of the four hinge shafts 16 at both ends, two hinge shafts at each end, are not installed with mounting parts 3. Two mounting parts 3 are symmetrically installed on each hinge shaft 16 on which the mounting parts 3 are installed. The two mounting parts 3 act on the two ends of the spacer rod 4 respectively to realize the mounting of five spacer rods 4. This embodiment can carry five spacer rods 4 into the air at the same time, and install the spacer rods 4 one by one, thereby reducing the frequency of flights between the ground and the air, improving work efficiency, and simplifying the installation process.

[0049] The chain belt frame 2 without the mounting parts 3 installed on the four hinge shafts 16 at both ends can fit with the outer side of the polygonal drum frame 1 during movement, ensuring the stability of the movement of the chain belt frame 2 and the rotation of the polygonal drum frame 1, and does not play the role of mounting the spacer rod 4.

[0050] The hinge shaft 16 corresponds to the corners of the polygonal drum frame 1; before releasing and installing the spacer rod 4, the different hinge shafts 16 of the chain belt frame 2 are located at the bottom end, and the different tip ends of the polygonal drum frame 1 are correspondingly downward. The spacer rod 4 carried by the bottom hinge shaft 16 is located at the bottom end and contacts the wire for installation; then the installation of the spacer rods 4 is completed one by one.

[0051] like Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, both ends of the spacer rod 4 are equipped with inverted U-shaped end seats 39, and the clamping structure for clamping the wire is located within the end seats 39. Extension brackets 32 are located on the underside of each end of the spacer rod 4, near the middle. The extension brackets 32 are approximately U-shaped and connected to the spacer rod 4 at both ends. A section of the extension bracket 32 near the end seat 39 is configured as an inclined portion, the distal end of which is connected to the end of the inverted U-shaped opening of the end seat 39 near the middle of the rod. When the spacer rod 4 is moved downward, the inclined portion makes it easier for the wire to enter and be clamped within the end seat 39, reducing installation difficulty.

[0052] The spacer rod body 4 is provided with a hole plate 24 corresponding to the electric telescopic rod 23. In this embodiment, two opposite hole plates 24 are provided on the extension frame 32, which correspond to the two electric telescopic rods 23 of the mounting part 3 to realize the mounting of the spacer rod body 4. The two hole plates 24 are placed on the inner side of the U-shaped plate 22 port of the mounting part 3. The hole plates 24 correspond to the electric telescopic rod 23. The telescopic ends of the electric telescopic rods 23 at both ends of the mounting part 3 extend into the hole plate 24 to realize the mounting of the spacer rod body 4 by the mounting part 3. The two mounting parts 3 at both ends of the hinge shaft 16 mount the two ends of the spacer rod body 4 to ensure the balance of the spacer rod body 4 when it is mounted.

[0053] Both ends of the spacer body 4 are provided with a fixed clamping block 25 and a movable clamping block 26 for clamping the wire. The fixed clamping block 25 and the movable clamping block 26 are both located at the end seat 39. The movable clamping block 26 is slidably connected to the end seat 39. Specifically, the movable clamping block 26 is connected to two guide rods 27, which slide through the side wall of the end seat 39 near the middle of the spacer body 4. The inner ends of the two guide rods 27 are connected to the end plate 28. The movable clamping block 26 is connected to a tension spring 29 that moves the movable clamping block 26 toward the fixed clamping block 25. The tension spring 29 is located outside the guide rods 27. The ends of the tension spring 29 are respectively connected to the end plate 28 and the end seat 39, causing the movable clamping block 26 to move toward the fixed clamping block 25. The movable clamping block 26 is connected to a locking rope 30. Specifically, the end plate 28 is connected to the locking rope 30. The locking rope 30 drives the movable clamping block 26 to move through the end plate 28 and the guide rod 27. The end of the locking rope 30 is connected to a positioning cylinder 31. The positioning cylinder 31 can be extended between the two orifice plates 24. The telescopic end of the electric telescopic rod 23 passes through the orifice plate 24 and cooperates with the positioning cylinder 31.

[0054] When the spacer rod 4 is mounted on the ground, the locking rope 30 is pulled to move the positioning cylinder 31 between the two orifice plates 24, and then the telescopic end of the electric telescopic rod 23 extends through the orifice plate 24 and enters the end of the positioning cylinder 31, thereby realizing the mounting of the spacer rod 4 and the positioning of the positioning cylinder 31; in the process of the positioning cylinder 31 moving to the two orifice plates 24, the locking rope 30 moves the end plate 28, the guide rod 27 and the movable clamping block 26 away from the fixed clamping block 25, and the end plate 28 causes the tension spring 29 to be stretched and store energy. During the installation of the spacer rod 4, the wire passes through the inclined portion of the expansion frame 32 and enters between the fixed clamp block 25 and the movable clamp block 26. The wires at both ends of the spacer rod 4 correspond to the fixed clamp block 25 and the movable clamp block 26. At this time, the telescopic end of the electric telescopic rod 23 is retracted and first withdrawn from the positioning cylinder 31. The tension spring 29 causes the movable clamp block 26 to move closer to the fixed clamp block 25 to clamp the wire. The telescopic end of the electric telescopic rod 23 continues to retract and disengage from the orifice plate 24 to release the spacer rod 4. Therefore, a retraction action of the electric telescopic rod 23 can achieve wire clamping and release of the spacer rod 4. The drone body 7 in this embodiment adopts a load-bearing drone. When installing the spacer rod, a small drone can be used to carry a camera to collect video information of the end of the spacer rod to facilitate rapid installation.

[0055] In this embodiment, insulators are installed at both ends of the spacer rod 4, and the extension frame 32 bypasses the insulators. To prevent the locking rope 30 from contacting the extension frame 32, a rope threading ring is provided on the extension frame 32. The rope threading ring allows the locking rope 30 to pass through the rope threading ring. Furthermore, when the spacer rod 4 is released, the rope threading ring prevents the locking rope 30 from excessively shaking, thereby reducing the impact of the positioning cylinder 31.

[0056] The tension spring 29 causes the movable clamping block 26 to approach the fixed clamping block 25 to clamp the wire, but the elastic clamping of the tension spring 29 is not stable. When the wire dances, the tension spring 29 will be deformed by force. Therefore, in this embodiment, the end of the spacer rod body 4 is rotatably connected to the check plate 33. Specifically, the check plate 33 is located in the end seat 39, and the top wall of the end seat 39 is provided with a groove. One end of the check plate 33 is hinged in the groove, and a V-shaped spring 34 is connected between the check plate 33 and the spacer rod body 4.

[0057] As the movable clamp 26 moves toward the fixed clamp 25, the check plate 33 rotates into the groove. After the movable clamp 26 passes the check plate 33, the movable clamp 26 and the fixed clamp 25 clamp the wire, and the V-shaped spring 34 causes the check plate 33 to pop out and return to its original position. The check plate 33 contacts the side of the movable clamp 26 facing away from the fixed clamp 25. In this way, the check plate 33 limits the reverse loosening of the movable clamp 26, preventing instability of the movable clamp 26. Manually pressing the check plate 33 back into the groove can then move the movable clamp 26 away from the fixed clamp 25. In this embodiment, the fixed clamp 25 forms one end of the U-shape of the end seat 39.

[0058] Although drone-mounted spacers are increasingly common, compared to traditional installation methods, manually tightening traditional spacers produces a greater clamping torque, preventing them from misaligning on the conductor. However, drone-mounted spacers struggle to achieve adequate clamping of the conductor, causing them to shift along the conductor. This makes it impossible to arrange more spacers outside the same section of conductor, and thus, fails to ensure adequate spacing and anti-conductor sway. The structure described in this embodiment also fails to avoid this problem.

[0059] In order to solve the problem of insufficient clamping force on the conductor, which causes the spacer rod to be installed misplaced, in this embodiment, the inner sides of the fixed clamping block 25 and the movable clamping block 26 have an arc-shaped surface that fits the side of the conductor. The arc-shaped surface is provided with a number of spiral strip-shaped protrusions 38 that extend into the gaps of the stranded wires on the surface of the conductor. The spiral strip-shaped protrusions 38 are evenly distributed around the circumference and match the gaps on the surface of the stranded wire. In the prior art, overhead cable conductors use steel-core aluminum stranded wire, and the surface of the aluminum stranded wire has spiral gaps. The spiral strip-shaped protrusions 38 in this embodiment extend into the gaps of the aluminum stranded wire, so that the ends of the spacer rod body 4 can only rotate around the aluminum stranded wire and be misplaced along the conductor. When the spiral strip-shaped protrusions 38 at both ends of the spacer rod body 4 extend into the gaps between the two parallel aluminum stranded wires, the spacer rod body 4 cannot rotate and cannot be misplaced along the conductor. Therefore, the spiral strip-shaped protrusions 38 can completely solve the problem of loose, loose, and misplaced spacer rods installed on drones.

[0060] The cross section of the spiral strip protrusion 38 is approximately triangular, one side of the cross section of the triangle is connected to the clamping block, and the other two sides are concave arc sides that can fit tightly with the outer sides of each strand.

[0061] When the movable clamping block 26 and the fixed clamping block 25 clamp the conductor, there may be a mismatch between the spiral protrusions 38 and the surface gap of the conductor. Therefore, in this embodiment, the fixed clamping block 25 and the movable clamping block 26 each have a circumferentially sliding clamping body 35 on the inside, and the spiral protrusions 38 are located on the clamping body 35. A plurality of arc-shaped sliders 36 are provided on the outside of the clamping body 35, and arc-shaped grooves 37 corresponding to the arc-shaped sliders 36 are provided on the inside of the fixed clamping block 25 and the movable clamping block 26. The arc-shaped sliders 36 slide along the inside of the arc-shaped grooves 37. The length of the arc-shaped grooves 37 is slightly greater than that of the arc-shaped sliders 36, allowing the clamping body 35 to slide slightly in the circumferential direction. The circumferential sliding distance is not less than the circumferential spacing between adjacent spiral protrusions 38. In this embodiment, the cross-sections of the arc-shaped sliders 36 and the arc-shaped grooves 37 are both T-shaped. When the movable clamping block 26 and the fixed clamping block 25 clamp the wire, the spiral strip protrusion 38 cannot correspond to the gap on the surface of the wire. When the movable clamping block 26 and the fixed clamping block 25 clamp the wire, the clamping body 35 slides circumferentially, so that the inner spiral strip protrusion 38 enters the gap of the stranded wire, and also avoids the impact damage of the spiral strip protrusion 38. At the same time, the circumferential sliding of the clamping body 35 can still rely on the spiral strip protrusion 38 to prevent the spacer rod 4 from moving and dislocating along the wire.

[0062] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments without inventive effort, or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spacer-assisted drone for live installation of overhead cables, characterized in that: include: UAV body (7); A polygonal cylinder frame (1) is located below the drone body (7) and is arranged horizontally; The chain belt frame (2) is a structure with multiple sections hinged end to end, and is U-shaped and wraps around the lower outer side of the polygonal cylinder frame (1); A plurality of mounting members (3) connected to the hinge of the chain belt frame (2) to mount and release the spacer rods (4); A plurality of main lifting ropes (5) are respectively connected to the upper sides of both ends of the chain belt frame (2); The reeling assembly (6) is mounted on the lower side of the drone body (7), connected to the upper end of the main suspension rope (5), and reels the main suspension rope (5).

2. The spacer-assisted drone for live installation of overhead cables according to claim 1, characterized in that: The lower side of the drone body (7) is connected to a secondary suspension rope (8), the lower end of the secondary suspension rope (8) is connected to a suspension seat (18), and a rotating shaft (19) that rotates and passes through the suspension seat (18) is provided at the center of the polygonal drum frame (1).

3. The spacer-assisted drone for live installation of overhead cables according to claim 1, characterized in that: The reeling assembly (6) comprises two sets of reels (12) rotatably mounted on the lower side of the drone body (7), and the two sets of reels (12) respectively reel in the main suspension ropes (5) at both ends of the chain belt frame (2); a motor (14) is mounted on the lower side of the drone body (7), and the motor (14) drives the two sets of reels (12) to rotate via two sets of belt transmission mechanisms (15).

4. The spacer-assisted drone for live installation of overhead cables according to claim 1, characterized in that: The chain belt frame (2) includes a plurality of hinge shafts (16), and a slat group (17) is hinged between the ends of adjacent hinge shafts (16), and the slat group (17) includes two parallel slats; the slat groups (17) adjacent to the same end of the chain belt frame (2) are axially offset, and the two slat groups (17) adjacent to the same slat group (17) are axially corresponding; the mounting member (3) is connected to the hinge shaft (16).

5. The spacer-assisted drone for live installation of overhead cables according to claim 4, characterized in that: Both ends of the polygonal drum rack (1) are provided with polygonal frames (20), and the slat group (17) is correspondingly fitted with the frame of the polygonal frame (20); and two parallel limiting plates (21) are provided on the outer side of each frame of the polygonal frame (20) and extend into between the slats of the slat group (17).

6. The spacer-assisted drone for live installation of overhead cables according to claim 1 or 4, characterized in that: The mounting member (3) comprises a U-shaped plate (22) connected to the hinge shaft (16), and an electric telescopic rod (23) is provided at the end of the U-shaped plate (22).

7. The spacer-assisted drone for live installation of overhead cables according to claim 6, characterized in that: The spacer rod body (4) is provided with a hole plate (24) corresponding to the electric telescopic rod (23); both ends of the spacer rod body (4) are provided with a fixed clamping block (25) and a movable clamping block (26) for clamping the wire, the movable clamping block (26) is connected to a tension spring (29) for moving the movable clamping block (26) toward the fixed clamping block (25), the movable clamping block (26) is connected to a locking rope (30), the end of the locking rope (30) is connected to a positioning cylinder (31), and the telescopic end of the electric telescopic rod (23) passes through the hole plate (24) and cooperates with the positioning cylinder (31).

8. The spacer-assisted drone for live installation of overhead cables according to claim 7, characterized in that: The end of the spacer rod (4) is rotatably connected to a check plate (33), and a V-shaped spring (34) is connected between the check plate (33) and the spacer rod (4). When the movable clamping block (26) and the fixed clamping block (25) clamp the wire, the check plate (33) contacts the side of the movable clamping block (26) facing away from the fixed clamping block (25).

9. The spacer-assisted drone for live installation of overhead cables according to claim 8, characterized in that: The inner sides of the fixed clamping block (25) and the movable clamping block (26) have an arc-shaped surface that fits the side surface of the conductor, and the arc-shaped surface is provided with a plurality of spiral strip-shaped protrusions (38) that extend into the twisted wire gaps on the surface of the conductor.

10. The spacer-assisted drone for live installation of overhead cables according to claim 9, characterized in that: The inner sides of the fixed clamping block (25) and the movable clamping block (26) are both provided with a clamping body (35) that slides in a circumferential direction, and the spiral strip-shaped protrusion (38) is located on the clamping body (35).

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